Knife blade



FIG. 1 is right side elevational view of a knife blade showing my new design;

FIG. 2 is top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is an enlarged view of a portion of the right side elevational view thereof.

FIG. 7 is an enlarged fragmentary portion of the bottom plan view of FIG. 3; and

FIG. 8 is an enlarged fragmentary view of a portion of the left side elevational view thereof.

The broken line showing of the handle in FIGS. 1-5 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a knife blade, as shown and described. 